JP2022547496A - dust mask - Google Patents

Abstract

An invention relating to a dust mask is disclosed. The disclosed invention is characterized in that the mask body is slidably connected to the mask body by a connecting member that ultrasonically welds the ear straps to the mask body. According to the present invention, the state of the ear straps can be adjusted as necessary to easily and conveniently select the mask tightness that suits the wearer's preference, and the mask is in close contact with the wearer's face. It is possible to provide the effect of allowing the state to be stably maintained. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a mask, and more particularly, to a dust mask for blocking fine dust in the air from entering the human body via a respiratory organ.

It is a well-known fact that large amounts of dust are generated in paper mills, textile mills, quarries and other workplaces. In particular, large amounts of toxic gases are generated in chemical factories and metal processing factories that perform welding, smelting, plating, and the like.

Recently, fine dust and yellow sand have frequently occurred, and they have emerged as another social issue. Also, in subways and roads, there is a tendency that various kinds of harmful dust are greatly increasing compared to the past.

Inhaling such dust, yellow sand, and harmful dust may not only cause fatal diseases such as lungs, but also cause asthma. As a result, not only at various industrial sites, but also during sports and mountain climbing, it is becoming more common to wear a dust mask to prevent such dust and harmful substances from entering the respiratory tract. ing.

Dust masks are categorized by size into infant, child and adult. This classification takes into consideration the basic face size according to the wearer's age. , it is important how well the dust mask can adhere to the face.

The purpose of wearing a dust mask is to filter the outside polluted air and inhale the freshest possible air. Therefore, in addition to improving the quality of the filter paper to improve the filtration performance, it is ultimately necessary to fit the curved facial contours of the wearer, that is, to the curved surfaces such as the nose, cheeks, and chin. It is very important to ensure that the dust mask fits well without any gaps.

In order to increase the adhesion between the dust mask and the face, it is necessary to appropriately adjust the length of the ear straps. The ear straps are hung on the wearer's ears and serve to secure the dust mask to the wearer's face. The length of the ear straps has a big impact on how well the dust mask fits on your face.

However, in most of the conventional dust masks, the ear straps are formed by cutting a string of elastic material into a predetermined length and attaching the string to both sides of the mask. The length of the ear straps of such a conventional dust mask can be adjusted to some extent due to their elasticity.

However, the length of the ear straps of the conventional dust mask can only be adjusted to a certain extent by using elasticity, and the length of the ear straps cannot be adjusted in a form that shortens the length of the ear straps. It has the drawback of not being possible. In addition, if the length of the ear string is excessively lengthened, it may cause a problem of excessive pressure on the wearer's face, thereby degrading the feeling of wearing.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust mask having an improved structure so that the length of ear straps can be effectively adjusted.

Another object of the present invention is to provide a dust mask having an improved structure so that the length of the ear straps can be adjusted and the ear straps can be stably fixed to the mask.

Another object of the present invention is to provide a dust mask improved in structure so that the ear straps can be stably fixed to the mask and the occurrence of skin irritation caused by the ear strap fixing portion is suppressed. That's what it is.

A dust mask according to one embodiment of the present invention for achieving the above object is characterized in that the ear straps are slidably coupled to the mask body by a coupling member that is ultrasonically welded to the mask body.

As a result, the ear straps can be installed on the mask body so that the length can be adjusted. state can be stably maintained.

A dust mask according to an aspect of the present invention includes a mask body provided with at least one filter paper, ear straps connected to the mask body, ear straps connected to the ear straps, and the ear straps to the mask body. and an ear strap connecting portion that allows the ear strap to connect to the ear strap, and the ear strap connecting portion includes a first connecting portion and a second connecting portion that are arranged with a predetermined distance in the vertical direction, and the different parts of the ear strap are the The ear straps are coupled to the mask body by being coupled to the first coupling portion and the second coupling portion, respectively, and the ear straps are arranged between the first coupling portion and the second coupling portion. and an outer section positioned outside the first joint and the second joint, wherein the inner section and the outer section increase in length of the outer section as the length of the inner section increases. the length of the inner section decreases and the length of the outer section increases as the length of the inner section decreases; a slidable joint connected to the ear straps such that the straps can move relative to the mask body, the slidable coupling portion being positioned between the mask body and the ear straps; a first coupling member covering the ear straps and coupled to the mask body, wherein the first coupling members are coupled to the mask body on both lateral sides of the ear straps, respectively; and the mask main body, a movement passage is formed in which the ear straps are slidably inserted.

In addition, the ear straps are made of a stretchable material that can increase in length while decreasing in thickness compared to the basic state, and the first connecting member is configured so that the movement path is thicker than the ear straps in the basic state. It is preferably joined to the mask body so as to be formed with a width narrower than the height.
Further, it is preferable that the sliding coupling portion is formed by ultrasonically welding the first coupling member to the mask body.
Further, it is preferable that a lattice pattern is formed in the fused portion between the first coupling member of the sliding coupling portion and the mask body.
Also, it is preferable that the first coupling member is made of a material having a higher strength than the mask body.

In addition, the mask further includes a fixed coupling portion for fixing a portion of the ear strap to the mask body, wherein one of the first coupling portion and the second coupling portion includes a sliding coupling portion, and the first coupling portion includes a sliding coupling portion. Preferably, the other of the portion and said second coupling portion comprises a fixed coupling portion.

In addition, the ear straps are formed in a string shape having a predetermined length, and the ear straps are arranged such that one longitudinal end portion and the other longitudinal end portion of the ear straps are adjacent to each other. It is preferably fixed to the mask body by one fixed joint.

In addition, the fixed coupling part includes a second coupling member that covers one longitudinal end and the other longitudinal end of the ear strap and is coupled to the ear strap and the mask body, Preferably, the connecting portion is formed by ultrasonically welding the second connecting member to the ear straps and the mask body.

According to the dust-proof mask of the present invention, the state of the ear straps can be adjusted as necessary to easily and conveniently select the mask tightness that suits the wearer's taste, while the face of the wearer can be adjusted. It is possible to provide an effect of stably maintaining a state of being in close contact with.

In addition, the present invention allows the user to easily and conveniently install the ear straps by performing the simple process of ultrasonically fusing the first connecting member to the mask body while pulling the ear straps. can be adjusted so that such a close contact state can be stably maintained, and the advantage of being easily manufactured at a low manufacturing cost can be provided.

In addition, the present invention can effectively reduce the occurrence of skin irritation caused by a dust mask by installing the ear straps using an ultrasonic fusion method instead of using a chemical adhesive. can.

1 is a front perspective view showing a dust mask according to one embodiment of the present invention; FIG. 2 is a rear perspective view showing a state in which the dust mask shown in FIG. 1 is spread; FIG. FIG. 2 is an enlarged view showing an enlarged partial region of the dust mask shown in FIG. 1; FIG. 4 is a cross-sectional view taken along line “IV-IV” of FIG. 3; FIG. 4 is a cross-sectional view taken along line “VV” of FIG. 3; 1 is a view showing a state in which a dust mask according to an embodiment of the present invention is folded vertically; FIG. FIG. 7 is a view showing a state in which the upper filter paper of the dust mask shown in FIG. 6 is spread; FIG. 8 is a diagram showing another example of the contact shape portion shown in FIG. 7; It is a figure which shows the wearing state of the dust mask which concerns on one Embodiment of this invention. FIG. 10 is a diagram showing an ear strap length adjustment state of the dust mask according to the embodiment of the present invention; FIG. 4 is a perspective view showing a dust mask according to another embodiment of the present invention; 12 is an enlarged view showing an enlarged partial region of the dust mask shown in FIG. 11; FIG. FIG. 13 is a cross-sectional view taken along line “XIII-XIII” in FIG. 12;

First, the ear straps 200 are placed on the mask body 100 at positions where the sliding joints 300 are to be formed. In this embodiment, both the first coupling portion A and the second coupling portion B are exemplified as having the sliding coupling portion 300 . In this case, the ear string 200 can be arranged at the position where the first connecting portion A and the second connecting portion B are formed. At this time, it is preferable that the ear straps 200 are arranged so that the portions to be placed on the joint portions A and B are arranged in a straight line.

The ear straps 200 are placed on the mask body 100, and the length of the ear straps 200 is adjusted by pulling the ear straps 200 in a state in which the portions placed on the mask body 100 are vertically aligned. lengthen. At this time, the points on the right side where the ear string 200 is pulled are the outer sides of the first joint portion A and the second joint portion B, that is, the points below the first joint portion A and the points above the second joint portion B. must be

As a result, the thickness of the portion of the ear strap 200 passing through the first connecting portion A and the second connecting portion B becomes thinner than in the basic state. In this state, the portions where the first coupling portion A and the second coupling portion B are formed are covered with the first coupling member 310 , and the first coupling member 310 is coupled with the mask body 100 .

In this embodiment, the mask body 100 and the first coupling member 310 are illustrated as being made of polypropylene (PP) material. The mask body 100 and the first coupling member 310 made of such materials may be coupled by ultrasonic fusion.

As another example, the first coupling member 310 may be made of a material having higher strength than the mask body 100 . For example, the mask body 100 may be made of polypropylene, and the first coupling member 310 may be made of polyethylene (PE). In this case, the strength of the portion where the sliding coupling portion 300 is formed can be further improved. That is, the strength of the sliding joint 300 can be further increased compared to the rest of the mask body 100 by further overlapping the mask body 100 with the first joint member 310, which is a single member. The first coupling member 310 may be made of a material having a higher strength than the first coupling member 310 .

At this time, the fusion between the first connecting member 310 and the mask body 100 is performed in such a manner that the first connecting member 310 can be kept in close contact with the ear straps 200 at the sliding connecting portion 300 . be able to. That is, the first connecting member 310 is fused to the mask body 100 to the maximum possible position adjacent to the ear straps 200 within a range in which the first connecting member 310 is not fused to the ear straps 200 , thereby maintaining a state of being in close contact with the ear straps 200 . It can be combined with the mask body 100 .

In addition, the first coupling member 310 of the sliding coupling portion 300 and the mask body 100 may be fused together in a grid pattern. As a result, the fused portion between the first coupling member 310 of the sliding coupling portion 300 and the mask body 100 may be formed in a lattice pattern.

Since the fused portion between the first coupling member 310 of the sliding coupling portion 300 and the mask body 100 is formed in a lattice pattern, the strength of the sliding coupling portion 300 can be further improved. In particular, since the structure protruding in the thickness direction of the mask body 100, i.e., the rib structure, can be formed in the slidable joint 300 in a grid pattern, the flexural strength of the slidable joint 300 region can be more effectively increased. can be improved.
The sliding connection part 300 is a part where the mask body 100 and the ear straps 200 are connected, and is a part where the most force is applied when the dust mask 10 is worn.

In consideration of this point, in the present embodiment, the first coupling member 310 formed of a material having higher strength than the mask body 100 is added to the sliding coupling portion 300, and the portion is provided with a lattice pattern. By forming a rib structure, the strength of the portion can be effectively improved. As a result, when the dust mask 10 is worn, it is possible to effectively suppress bending, deformation, or breakage of the relevant portion.
On the other hand, by extending the length of the ear straps 200 before the mask main body 100 and the first connecting member 310 are fused, the thickness of the ear straps 200 becomes thinner than in the basic state.

When the mask main body 100 and the first connecting member 310 are fused together with the ear straps 200 thinned in this manner, the movement passage 315 into which the ear straps 200 are inserted is changed to the basic state of the ear straps 200 . can be formed in a width narrower than the thickness of the

When the moving passage 315 is formed to have a narrow width in this way, when the pulled ear strap 200 is released and returns to the basic state, the ear strap 200 inside the moving passage 315 is not slidably connected. 300 puts it in a state of being squeezed. That is, a strong frictional force acts between the ear string 200 and the sliding coupling portion 300 .

As a result, the ear strap 200 is slidably coupled to the sliding coupling portion 300, but can move relative to the sliding coupling portion 300 if a force above a certain level is applied. It remains fixed to the sliding joint 300 .

The thickness of the ear straps 200 when the mask body 100 and the first connecting member 310 are fused may be 91 to 98% of the thickness of the ear straps 200 in the basic state. Preferably, the thickness of the ear straps 200 is 95% of the thickness of the ear straps 200 in the base state.

If the thickness of the ear straps 200 is less than 91% of the thickness of the ear straps 200 in the basic state, that is, if the ear straps 200 are pulled too much, the ear straps 200 may not slide properly. In addition, due to the elastic force of the ear straps 200 trying to return to the basic state, a large force is applied to the fused portion between the mask body 100 and the first connecting member 310, and the sliding connecting portion 300 may be damaged. get higher

In addition, when the thickness of the ear strap 200 exceeds 98% of the thickness of the ear strap 200 in the basic state, that is, when the ear strap 200 is not pulled much, the sliding coupling portion 300 does not stretch the ear strap 200 . Fixation may not be performed correctly. That is, when the dust mask 10 is worn, the ear straps 200 are not properly fixed to the sliding joint 300 and move, which may make it difficult to stably wear the dust mask 10 . .

Considering this point, in the present embodiment, the thickness of the ear straps 200 when the mask main body 100 and the first connecting member 310 are fused is 91 to 91% of the thickness of the ear straps 200 in the basic state. The formation of the sliding joint 300 should be carried out at 98%, preferably 95%.

Accordingly, the dust mask 10 can be stably fixed to the face while the length of the outer section 220 of the ear string 200 can be easily and conveniently adjusted as needed.

[Structure for Forming Adhesion Shape]

FIG. 6 is a view showing a state in which a dust mask according to an embodiment of the present invention is folded vertically, and FIG. 7 is a view showing a state in which the upper filter paper of the dust mask shown in FIG. 6 is unfolded. 8 is a diagram showing another example of the close contact shape portion shown in FIG. 7, and FIG. 9 is a diagram showing a wearing state of the dust mask according to one embodiment of the present invention.

Referring to FIGS. 6 and 7, the dust mask 10 of the present embodiment can be formed with a contact shape portion 150 . For example, the close contact shape portion 150 may be formed by cutting the cutout portion 160 from the upper filter paper 120 folded in half lengthwise and then forming the close contact stitching line 170 using ultrasonic waves.
At this time, if the cutout portion 160 is cut off in a round shape, a contact shape portion 150 having a round concave shape can be formed in the upper portion of the upper filter paper 120 as shown in FIG.
As another example, the contact shape portion 150 may be formed by cutting the center of the upper filter paper 120 in the lateral direction, as shown in FIG.

The contact shape portion 150 formed as described above can contribute to the contact of the dust mask 10 to the face. That is, as shown in FIG. 9, when the user wears the dust mask 10 on the face, the contact shape portion 150 is positioned on the back of the nose, and the dust mask 10 is brought into close contact with the face along the protruding contour of the nose. can be done.

As a result, the use of the contact wire used in the conventional dust mask can be fundamentally eliminated, so that the manufacturing cost of the dust mask 10 can be reduced. Emission of toxic substances can be fundamentally blocked.

[Function and effect of dust mask]
10A and 10B are diagrams showing the ear strap length adjustment state of the dust mask according to the embodiment of the present invention.
The action and effect of the dust mask according to this embodiment will be described below with reference to FIGS. 3 to 10. FIG.

Referring to FIG. 3, the ear straps 200 are slidably coupled to the sliding coupling portion 300 so that the ear straps 200 are installed on the mask body 100 so that the length of the outer section 220 can be freely adjusted. can
For example, as shown in FIG. 10(a), when the outer section 220 of the ear strap 200 is (1) pulled in the direction of the arrow, the inner section 210 of the ear strap 200 (2) moves in the direction of the arrow.
As a result, as shown in FIG. 10(b), the length of the inner section 210 of the ear strap 200 is shortened, while the length of the outer section 220 of the ear strap 200 is increased.

Thus, increasing the length of the outer section 220 of the ear strap 200 means increasing the length of the section of the ear strap 200 that can be hung on the wearer's ear.

That is, the wearer can freely adjust the length of the outer section 220, which is the section that hangs over the ear, of the ear strap 200, so that the wearer can adjust the length of the outer section 220 to suit the wearer's taste. The feeling of close contact with the mask can be easily and conveniently selected.

Also, the length of the ear straps 200 can be adjusted by applying a force above a certain level, otherwise the ear straps 200 can maintain their positions fixed.

That is, the dust mask 10 of the present embodiment allows the wearer to adjust the state of the ear straps 200 as needed to easily and conveniently select a mask-fitting feeling that suits the wearer's preference, while at the same time It is possible to provide the effect of stably maintaining the state of close contact with the face of the person.

Also, referring to FIGS. 3 to 5, the installation of the ear straps 200 in the form described above can be achieved by simply ultrasonically fusing the first coupling member 310 to the mask body 100 while the ear straps 200 are being pulled. It can be done only in the process.

That is, the dust-proof mask 10 of the present embodiment can be easily and conveniently adjusted in terms of tightness, stably maintaining such tightness, and can be easily manufactured at a low manufacturing cost. can provide advantages.

Further, according to the present embodiment, the first connecting member 310 made of a material having higher strength than the mask main body 100 is attached to the sliding connecting portion 300 at the portion where the mask main body 100 and the ear straps 200 are connected. A structure is provided in which a grid-patterned rib structure is formed at the site while allowing it to be added.
Accordingly, when the dust mask 10 is worn, the joint between the mask body 100 and the ear straps 200 can be stably supported so as not to be bent, deformed or damaged.

In addition, in the dust mask 10 of the present embodiment, the ear straps 200 are installed by an ultrasonic fusion method instead of using a chemical adhesive, so skin irritation caused by the dust mask 10 can be effectively reduced. can be done.

[Another embodiment of the dust mask]

11 is a perspective view showing a dust mask according to another embodiment of the present invention, FIG. 12 is an enlarged view showing a partial area of the dust mask shown in FIG. 11, and FIG. 13 is an enlarged view of FIG. It is a cross-sectional view along the "XIII-XIII" line.

11 to 13, a dust mask 20 according to another embodiment of the present invention may further include a fixed coupling part 400. As shown in FIG. A fixing joint 400 may be provided to fix a portion of the ear strap 250 to the mask body 100 .

One of the first coupling portion A and the second coupling portion B includes a sliding coupling portion 300, and the other of the first coupling portion A and the second coupling portion B includes a fixed coupling portion 400. be able to.
In this embodiment, the first coupling portion A comprises a fixed coupling portion 400 and the second coupling portion B comprises a sliding coupling portion 300 .

Meanwhile, the ear string 250 may be formed in a string shape having a predetermined length. That is, unlike the previous embodiment in which the ear straps are formed in a ring shape, the ear straps 250 in this embodiment are provided in a string shape in which both ends in the longitudinal direction are not connected.

In the fixing coupling part 400 , the ear straps 250 may be fixed in such a manner that both longitudinal ends of the ear straps 250 are fixed on the mask body 100 . That is, in the previous embodiment, the ear straps and the mask main body 100 are connected in a state in which both ends in the longitudinal direction of the ear straps are coupled to each other to form the ear straps in a ring shape. In the embodiment, the ear straps 250 and the mask body 100 may be coupled with both ends of the ear straps 250 in the longitudinal direction being separated.

According to this, the ear straps 250 are fixed to the mask main body 100 by one fixing joint 400 in a state where one longitudinal end and the other longitudinal end are arranged adjacent to each other. can be done.

The fixed joint 400 may comprise a second joint member 410 . The second coupling member 410 may be coupled to the ear straps 250 and the mask body 100 by covering one longitudinal end and the other longitudinal end of the ear straps 250 . The fixed coupling part 400 may be formed by ultrasonically fusing the second coupling member 410 to the ear string 250 and the mask body 100 . The second coupling member 410 may be made of the same or similar material as the first coupling member.

According to this embodiment, the ear straps 250 are slidably coupled to the mask body 100 via the sliding coupling portion 300 and fixedly coupled to the mask body 100 through the fixed coupling portion 400 . be able to. The inner section 260 of the ear strap 250 is positioned between the sliding joint 300 and the fixed joint 400 , and the outer section 270 is positioned outside between the sliding joint 300 and the fixed joint 400 . can

Length adjustment of the outer section 270 of the ear strap 250 can be performed via the sliding joint 300 and securing of the ear strap 250 can be performed by the fixed joint 400 .

That is, considering that the length of the ear straps 250 can be sufficiently adjusted even if each ear strap 250 is connected to only one sliding coupling portion 300, only the first coupling portion A is slidable. A dynamic coupling portion 300 is formed, and in the second coupling portion B, instead of the sliding coupling portion 300, a fixed coupling portion 400 for fixing the ear strap 250 is formed.

When the longitudinal ends of the ear straps 250 are joined by the fixed joints 400, the joining surface can be increased compared to the case where the longitudinal ends of the ear straps 250 are joined together, thereby joining the ear straps 250 together. Strength can be further improved.
Since the ear straps 200 are installed by ultrasonic welding instead of using a chemical adhesive, skin irritation caused by the dust mask 20 can be effectively reduced.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is by way of example only and many modifications will occur to those of ordinary skill in the art. and other equivalent embodiments are possible. Therefore, the true technical scope of protection of the present invention should be determined by the following claims.

10, 20 dust mask 100 mask main body 110 central filter paper 120 upper filter paper 130 lower filter paper 140 fused portion 150 close contact shape portion 160 cutout portion 170 close suture line 200, 250 ear straps 210, 260 inner section 220, 270 outer section 300 Sliding coupling portion 310 First coupling member 315 Moving passage 400 Fixed coupling portion 410 Second coupling member A First coupling portion B Second coupling portion

Claims (6)

a mask body provided with at least one filter paper;
an ear strap connected to the mask body;
an ear strap connecting part connected to the ear strap and connecting the ear strap to the mask body;
The ear string connecting portion includes a first connecting portion and a second connecting portion arranged vertically with a predetermined distance therebetween,
Different parts of the ear straps are connected to the first coupling portion and the second coupling portion, respectively, and the ear straps are coupled to the mask body,
The ear strap includes an inner section arranged between the first joint portion and the second joint portion, and an outer section arranged outside the first joint portion and the second joint portion. ,
The inner section and the outer section are connected to each other such that the length of the outer section decreases as the length of the inner section increases, and the length of the outer section increases as the length of the inner section decreases. is,
at least one of the first coupling portion and the second coupling portion includes a sliding coupling portion coupled to the ear strap so that the ear strap can move relative to the mask body;
The sliding coupling portion includes a first coupling member that covers the ear straps and is coupled to the mask body such that the ear straps are arranged between the mask body and the mask body,
The first connecting members are connected to the mask body on both lateral sides of the ear straps,
A dust-proof mask, wherein a moving passage is formed between the connecting portion between the first connecting member and the mask body, into which the ear strap is slidably inserted. The ear straps are made of a stretchable material that can increase in length while decreasing in thickness compared to the basic state,
2. The dust mask according to claim 1, wherein said first connecting member is connected to said mask body such that said moving path is formed with a width narrower than the thickness of said ear straps in said basic state. 2. The dust mask according to claim 1, wherein the sliding coupling portion is formed by ultrasonically fusing the first coupling member to the mask body. 4. The dust mask according to claim 3, wherein a lattice pattern is formed in the fused portion between the first coupling member of the sliding coupling portion and the mask body. 2. The dust mask according to claim 1, wherein said first connecting member is made of a material having higher strength than said mask body. further comprising a fixing joint for fixing a portion of the ear strap to the mask body;
one of the first coupling portion and the second coupling portion includes a sliding coupling;
2. The dust mask of claim 1, wherein the other of said first coupling portion and said second coupling portion comprises a fixed coupling portion.

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